body {
    background-color: #EEE;
}

#window {
    text-align: center;
    width : 650px;
    margin: 1.8em auto;
    border : 1px solid #DDD;
    border-radius: 5px;
    background-color: #FFF;
    user-select:none;
    -webkit-user-select: none;
    box-shadow: 0 0 3px #CCC;
}

.game_area{
    display: flex;
    flex-direction: column;
    justify-content: center;
    margin: 1.2em 1.2em 0.5em 1.2em;
}

#canvas {
    background-color: transparent;
    box-shadow: inset 1px 1px 3px #EEE, inset -1px 0 3px #EEE;
}

.desk{
    display: flex;
    color: #555;
}

.desk div{
    flex : 0 0 33.3333%;
    text-align: center;
    background-color: rgb(240,240,240);
}

.desk div:nth-child(2) {
    box-sizing: border-box;
    border-left: 1px solid #CCC;
    border-right: 1px solid #CCC;
}

#tools{
    display: flex;
    margin: 0 1.2em 0.5em 1.2em;
    justify-content: space-between;
    align-items: center;
    color : #666;
    font-size: 1em;
}

#tools_list {
    display: flex;
}

#floor_select {
    display: flex;
}

.floor{
    margin-right: 0.4em;
}

#input_floor {
    width : 4em;
    text-align: center;
}

#bt_run {
    background-color: rgb(74, 151, 202);
    border : 1px solid rgb(147, 165, 231);
    color: #FFF;
    width : 5em;
    height: 1.5em;
    line-height: 1.5em;
    border-radius: 3px;
}

#bt_run:hover{
    background-color: rgb(112, 186, 235);
    cursor: pointer;
}

#bt_run:active{
    background-color: rgb(74, 151, 202);
}

.top-bar{
    display: flex;
    justify-content: space-between;
    font-size: 0.8em;
    color: #999;
}
.top-bar a{
    text-decoration: none;
    font-weight: bold;
    color: #999;
}
.top-bar a:hover{
    color: orange;
}